%0 Journal Article
%A A. V. Bitsadze
%T On the problem of equations of mixed type
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1953
%P 3-59
%V 41
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1953_41_a0/
%G ru
%F TM_1953_41_a0